Helen's shop is 60 meters wide and 80 meters long. the parking lot in front of helen's shop is twice as long as it is wide and is 50 meters wide. what is the sum of the area of helen's shop and the parking lot?

What are the soultion(s) to the quadratic equation 40- x^2=0

Use circumcenter theorem to solve for the given values

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?